In this Letter, new chrysanthemum-shaped micrometre calcium carbonate was prepared by using CaCl 2 aqueous solution + NH 3 H 2 O + CTAB + n-butanol + n-hexane inverse microemulsion system. Scanning electron microscope, X-ray powder diffraction, and Fourier transform infrared spectroscopy were used to characterise the morphology and structure of the micron calcium carbonate. Further, the formation mechanism of chrysanthemum-shaped micron calcium carbonate was discussed.
In this paper, titanium dioxide methylene blue molecularly imprinted polymer (TiO2-MB-MIP) was prepared by using MB-MIP as supported carrier. Through the study of its adsorption performance and photodegradability, it was found that the prepared TiO2-MB-MIP has both the adsorption capacity and the photodegradation capacity on MB. The static adsorption experiment shows that its adsorption and photodegradation capacity can reach 1202.1[Formula: see text]mg[Formula: see text]⋅[Formula: see text]g[Formula: see text] when the original concentration of MB is 5.0[Formula: see text]mg[Formula: see text]⋅[Formula: see text]mL[Formula: see text]. In addition, the degradation ability of the material in MB aqueous solutions was studied under varying light conditions. By analyzing the nitrogen and carbon content in the adsorbed solutions, the degradation process was found that the carbon and heteroatoms nitrogen in MB can be degraded to CO2, and NH[Formula: see text] or NO[Formula: see text], respectively. The adsorption isotherm thermodynamics and kinetics model study found that the adsorption process conforms to the Langmuir isotherm equation and the quasi-secondary kinetic model, indicating that the adsorption is basically monolayer adsorption and the adsorption process is the chemical rate control step. The TiO2-MB-MIP can be used to protect our environment by treating pigment wastewater efficiently.
Nano zero-valent iron activated persulfate (nZVI/PS) advanced oxidation technology is a novel approach with advantages in treating high-concentration and refractory organic pollutants. This paper aims to provide a comprehensive review...
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.